ok.tech: Ukuhlangana kukaCassandra

Usebenzisa isitoreji se-Apache Cassandra NoSQL?

NgoMeyi 23, i-Odnoklassniki imema abathuthukisi abanolwazi ehhovisi labo eSt hlangana, ezinikele ekusebenzeni ne-Apache Cassandra. Okubalulekile ulwazi lwakho noCassandra kanye nesifiso sakho sokwabelana ngakho.
Bhalisela umcimbi

Kulungile waqala ukusebenzisa I-Apache Cassandra ngo-2010 ukugcina izilinganiso zezithombe. Njengamanje singabasebenzisi abakhulu be-Apache Cassandra ku-RuNet futhi singesinye esikhulu kunazo zonke eYurophu. Sinamaqoqo ahlukene angaphezu kwekhulu asetshenziselwa kokubili ukugcina ulwazi lwemikhiqizo ehlukahlukene - amakilasi, izingxoxo, imilayezo, kanye nokuphatha idatha yengqalasizinda ebalulekile - ukwenza imephu amabhulokhi anengqondo kumadiski esitoreji kanambambili esikhulu - isitoreji esisodwa esibandayo, ukuphathwa kwedatha yefu yangaphakathi ifu elilodwa nokunye.

Sekukonke, ku Ofunda nabo I-Cassandra iphethe ama-petabytes edatha ezinkulungwaneni zamanodi. Ngalesi sikhathi, siye saqongelela ulwazi oluningi ekuphatheni, ekuthuthukiseni nasekusebenziseni izixazululo ezisekelwe ku-Cassandra futhi saze sathuthukisa ezethu. eyakho i-NewSQL transaction database.

Manje singathanda ukwabelana nawe ngakho konke lokhu - sisebenzisa izimo zangempela ezivela ekusebenzeni futhi ngaphandle kwezimfihlo; Umcimbi uzobanjwa ngendlela yengxoxo ebukhoma phakathi kwabahlanganyeli, okusho ukuthi ingxoxo izothatha ingxenye enkulu yesikhathi. Ochwepheshe KULUNGILE bakulungele ukwabelana ngemibono nezindlela zabo. Umcimbi uzosingathwa ngu Oleg Anastasyev и Alexander Khristoforov.

Zizoba yini izihloko?

Ukuxhashazwa:

Ake sibheke ukulungiselelwa okujwayelekile kwama-node namaqoqo ekufakweni okuhlukahlukene kokukhiqiza. Sizoxoxa ngokuthi singawakhulisa kanjani amaqoqo njengoba umthamo wedatha nemithwalo ikhula nokuthi ungawashintsha kanjani ama-node ahlulekile anomphumela omncane kumakhasimende. Ake sabelane ngobuhlungu futhi sihlele i-rake ethandwayo. Ake sithole ukuthi singaqapha kanjani amaqoqo ukuze siqonde kusengaphambili ukuthi yini ngempela engasebenzi kahle. Ake sithinte ezinkingeni zokusebenzisa izinguqulo ezintsha ze-Cassandra.

Ukusebenza:

Ake sizame ukuqonda ukuthi yimaphi amamethrikhi okufanele abhekwe nokuthi yini engashintshwa ukuze kwenziwe amamethrikhi abe ngcono. Ake sithole ukuthi siziqeqeshe kabusha noma cha futhi uma kunjalo, kanjani. Sizohlonza izingqinamba ekwakhiweni nasekusetshenzisweni kwe-Cassandra futhi sibheke amaqhinga obunjiniyela esingasebenza kuzo. Ake sithinte ukukhanda okubuhlungu okuvamile kanye nokucinana ngaphandle kokuwohloka kokusebenza.

Ukubekezelela amaphutha:

I-Hardware ayihlali phakade, ngakho-ke izingozi zenzeka ngaso sonke isikhathi, futhi isandla sozakwethu singase sithuthumele futhi sizosusa izinto ezingadingekile, ngakho-ke sizoxoxa ngokuthola kabusha ngemva kokwehluleka kwamadiski, imishini noma izikhungo zedatha, kanye nokubuyela emuva kokuvumelana. chaza kusuka kuzipele uma kwenzeka kuba namaphutha o-opharetha.

Bhalisa futhi utshele abangani bakho nozakwenu ngomcimbi.

Source: www.habr.com